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Related Concept Videos

Auditory Perception01:17

Auditory Perception

797
The auditory system is essential for sound perception, utilizing various critical structures. When sound waves enter the outer ear, they travel through the ear canal and cause the eardrum to vibrate. These vibrations are then transmitted to the middle ear, where three tiny bones – the malleus, incus, and stapes – amplify the sound. This amplification is crucial, as it ensures that the sound vibrations are strong enough to be conveyed to the inner ear. These vibrations then reach the...
797
Perceiving Loudness, Pitch, and Location01:21

Perceiving Loudness, Pitch, and Location

648
The human brain perceives pitch through two primary mechanisms reflected in place theory and frequency theory. Each mechanism describes how sound waves are interpreted as specific pitches by the brain, offering insights into the intricate processes of auditory perception.
Place theory, or place coding, suggests that different pitches are heard because various sound waves activate specific locations along the cochlea's basilar membrane. The brain determines the pitch of a sound by...
648
Perception of Sound Waves01:01

Perception of Sound Waves

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The human ear is not equally sensitive to all frequencies in the audible range. It may perceive sound waves with the same pressure but different frequencies as having different loudness. Moreover, the perception of sound waves depends on the health of an individual's ears, which decays with age. The health of one's ears may also be affected by regular exposure to loud noises.
The pitch of a sound depends on the frequency and the pressure amplitude of the source. Two sounds of the same...
5.2K
Auditory Pathway01:15

Auditory Pathway

6.5K
Auditory pathways constitute the complex neural circuits responsible for transmitting and interpreting auditory information from the peripheral auditory system to the brain. Sound waves are initially captured by the outer ear, funneled through the ear canal, and reach the tympanic membrane (eardrum). These vibrations are transmitted via the middle ear's ossicles to the inner ear's cochlea.
When viewed cross-sectionally, the cochlea reveals the scala vestibuli and scala tympani flanking...
6.5K
Factors Affecting Perception01:25

Factors Affecting Perception

2.3K
Perception is influenced by perceptual set, context, motivation, and emotion. Perceptual set, or perceptual expectancy, refers to the tendency to perceive things in a particular way, influenced by previous experiences and expectations. This phenomenon affects the interpretation of stimuli, creating a set of mental tendencies and assumptions that impact sensory perceptions of sound, taste, touch, and sight.
An illustrative example of a perceptual set is the scenario where an airline pilot told...
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Hearing01:31

Hearing

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When we hear a sound, our nervous system is detecting sound waves—pressure waves of mechanical energy traveling through a medium. The frequency of the wave is perceived as pitch, while the amplitude is perceived as loudness.
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A Review on Auditory Perception for Unmanned Aerial Vehicles.

Jose Martinez-Carranza1,2, Caleb Rascon3

  • 1Instituto Nacional de Astrofisica Optica y Electronica (INAOE), Puebla 72840, Mexico.

Sensors (Basel, Switzerland)
|December 23, 2020
PubMed
Summary
This summary is machine-generated.

This review explores auditory perception for unmanned aerial vehicles (UAVs), focusing on audio techniques and microphone setups. It categorizes methods by UAV role and auditory objectives like source detection and localization.

Keywords:
UAVaudioauditory perceptionmicrophone

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Area of Science:

  • Robotics and Autonomous Systems
  • Acoustic Signal Processing
  • Sensor Fusion

Background:

  • Visual perception dominates unmanned aerial vehicle (UAV) research, leaving auditory perception underexplored.
  • Auditory perception offers complementary environmental data for UAVs, enhancing situational awareness.
  • Key applications include detecting, classifying, and localizing audio sources of interest.

Purpose of the Study:

  • To conduct a comprehensive literature review on auditory perception techniques for UAVs.
  • To categorize existing audio methods based on UAV's role (perceiver or perceived) and objectives (detection, classification, localization).
  • To provide a landscape of current research and identify future research directions in UAV auditory perception.

Main Methods:

  • Systematic review of academic literature on UAV auditory perception.
  • Categorization of techniques based on UAV's role in auditory perception.
  • Classification of methods according to common objectives: audio source detection, classification, and localization.

Main Results:

  • Identified a gap in research concerning auditory perception compared to visual perception in UAVs.
  • Proposed a novel categorization framework for auditory perception techniques in UAVs.
  • Summarized prevalent audio techniques and microphone configurations used in UAV applications.

Conclusions:

  • Auditory perception is a valuable, yet underutilized, sensory modality for UAVs.
  • Further research is needed to advance audio techniques for enhanced UAV environmental awareness and task performance.
  • This review serves as a guide for researchers entering the field of UAV auditory perception.